Patents by Inventor Abderrachid Hamrani

Abderrachid Hamrani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multidirectional synchronized ultrasonic devices and methods for assisting wire arc additive manufacturing
    Patent number: 11491569
    Abstract: Devices and methods to assist wire arc additive manufacturing (WAAM) are provided. A non-contact, multidirectional synchronized ultrasonic device can include multiple ultrasonic probes mounted on a nozzle of a WAAM robotic arm. The probes can include one normal probe and a plurality of lateral probes configured to rotate on a parabolic frame. The ultrasonic probe in the normal direction can act by its continual high-frequency oscillation in the arc plasma to enhance the arc push force, while the lateral probes can act on the shape of both sides of the deposit. The combined effect of the probes can generate ultrasonic waves and cavitation in the molten pool.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: November 8, 2022
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Abderrachid Hamrani, Arvind Agarwal, Tanaji Paul